Toy airplane



Patented iug. 11, 1925.

saire srars- DANIEL Il DJVYER, O'F DAYTON, OHIO, ASSIGNOB. OF ONE-HALFTO EARL A. SIvTITI-I i estava sarai? sie.

OF DAYTON, OHIO.

To all fr0/710m t may concern Be it known that I, DANIEL I. DwYER, acitizen of the United States, residing at Dayton, in the county ofMontgomery and State of Ohio, have invented certain new and usefulImprovements in Toy Airplanes, of which the following is aspecification, reference being had therein to the accompanying drawing.

My invention relates to airplanes and in particular to toy airplanes.

It is the object of my invention to provide an airplane and inparticular a toy airplane in which the rubber bands or other source ofmotive power may be completely enclosed within a hollow invertedU-shaped fuselage structure. Thi-s structure may be closed at the bottomor not as desired.

It is a further obj-ect to provide such a plane with a main wing surfacewarped to compensate for the propeller torque and to provide incombination therewith a stabilizer surface on the tail having a negativeangle of incidence.

It is my object to provide a fuselage structure in a toy which will haveall of the appearance of the fuselage of a large full size plane and atthe same time have the structure serve for enclosing, concealing andprotecting a source of motive power for the propeller.

It is an additional object to provide means of hooking this motive powersuch as rubber bands upon the tail skid.

It is my object to change the normal angle of incidence of one wing to agreater angle of incidence than that of the other to overcome the effectof torque of the propeller by giving one wing a greater lifting effectas the toy proceed-s in flight, whereby the torque is overcome and thetoy kept in horizontal balance, and combine with this a tail structurewith a negative angle of incidence.

Referring to the drawings:

Figure 1 is a plan view of the plane;

Figure 2 is a side elevation thereof;

Figure 3 is a front elevation showing the warping of the left hand wingto compensate for the torque; and

Figure l is a perspective of the fuselage body and main wing.

Referring to the drawings, 1 generally designates a fuselage body whichis preferably U-shaped having a top wall 2 and side walls 25 which mayhave window open- Application filed February 2, 1925.

Serial No. 6,210.

ing-s 4L if desired. In the forward end ofthis fuselage is mounted ablock or plate 5 for supporting the propeller shaft 6 and the universalpropeller bearings 7 and 8 which are semi-circular conical disks. Onthis shaft is mounted the propeller 9.

The side walls of the fuselage .structure carry the landing skids 10which are U- shaped having a forwardly projecting loop 11. These skidsare mounted on either side of the machine diverged outwardly anddownwardly forming together a substantially V-shaped structure whenviewed from the front of the machine.

rIhe upper surface of the fuselage 2 carries the main wing structurewhich on the right hand side is either flat or cambered as the outer endof the wing tips upwardly. This wing surface is designated 12. The otherwing surface designated 13 on the left hand side is warped on the maj oraXis of the wing surface so that the forward or leading edge 14 ishigher than the trailing edge 15. This compensates for the propellertorque.

I also provide a stabilizer surface on the tail of the fuselage, suchstabilizer being lo` cated at a negative angle of incidence with themajor axis of the machine. These surfaces are designated 16. The forwardedge 17 is in a lower plane than the rear edge 18. A vertical rudderstructure 19ZL is provided between and above the stabilizer surfaces.

The under surface of the tail structure carries a U-shaped tail skid 19upon which is hooked a hook 2O carrying the rubber bands 21 which areconnected at their forward end to the propeller shaft 6.

It will be understood that I desire to comprehend within my inventionsuch modifications as may be necessary to adapt it to varying conditionsof use.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. In a toy airplane, a main plane surface having one half of thesurface warped about the major axis of the plane surface and fuselage, apropeller, means for actuating the propeller, a rudder, a stabilizerhaving a negative angle of incidence, said fuselage consisting of a bodyhaving enclosing side walls for enclosing the actuating means for thepropeller, said actuating rneans consist- .ing of a plurality of rubberbands connected to a propeller shaft at one end within the fuselage andconnected at the other end to a tail skid carrie-d at the lower rear endof the fuselage, and a tail skid, whereby the rubber bands are enclosedand hidden within the fuselage.

2. In a toy airplane, an inverted Ushaped fuselage, a supporting blockin the forward end thereof for a propeller, a propeller shaft carriedthereby, a resilient means connected to said propeller shaft and locatedwithin said fuselage and enclosed thereby, landing said main planesurface having a portion thereof warped about its major axis and thestabilizer surface having a negative angle of incidence to the majoraxis of the plane.

In testimony whereof, l alhX my signature.

DANIEL I. DVYER.

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